1 files changed, 60 insertions, 0 deletions
diff --git a/src/main/java/org/elasticsearch/discovery/BlockingClusterStatePublishResponseHandler.java b/src/main/java/org/elasticsearch/discovery/BlockingClusterStatePublishResponseHandler.java
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+++ b/src/main/java/org/elasticsearch/discovery/BlockingClusterStatePublishResponseHandler.java
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+/*
+ * Licensed to Elasticsearch under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.elasticsearch.discovery;
+
+import org.elasticsearch.cluster.node.DiscoveryNode;
+import org.elasticsearch.common.unit.TimeValue;
+
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+
+/**
+ * Default implementation of {@link ClusterStatePublishResponseHandler}, allows to  await a reply
+ * to a cluster state publish from all non master nodes, up to a timeout
+ */
+public class BlockingClusterStatePublishResponseHandler implements ClusterStatePublishResponseHandler {
+
+    private final CountDownLatch latch;
+
+    /**
+     * Creates a new BlockingClusterStatePublishResponseHandler
+     * @param nonMasterNodes number of nodes that are supposed to reply to a cluster state publish from master
+     */
+    public BlockingClusterStatePublishResponseHandler(int nonMasterNodes) {
+        //Don't count the master, as it's the one that does the publish
+        //the master won't call onResponse either
+        this.latch = new CountDownLatch(nonMasterNodes);
+    }
+
+    @Override
+    public void onResponse(DiscoveryNode node) {
+        latch.countDown();
+    }
+
+    @Override
+    public void onFailure(DiscoveryNode node, Throwable t) {
+        latch.countDown();
+    }
+
+    @Override
+    public boolean awaitAllNodes(TimeValue timeout) throws InterruptedException {
+        return latch.await(timeout.millis(), TimeUnit.MILLISECONDS);
+    }
+}